hove i create arrow?

[sunolinu]

what is command of creating arrow?
thaks

[Fubarable]

what is command of creating arrow?
thaks

Please provide us with enough relevant information so that your question is in fact answerable. Much luck.

[sunolinu]

i have some shape like fill circle i want when i click on shape one then clicking
on another shape the arrow shape create between two shapes

arrow = --------->

i want just arrow command not mouse listner , ...

[Darryl.Burke]

And how do you plan to detect a mouse click without a mouse listener?

db

[sunolinu]

And how do you plan to detect a mouse click without a mouse listener?

db

my means that i know how create mouse listener and ...
but what cammand of arrow for example for fill rectangle
the command is g.fillRect(200,200,10,10)

[hardwired]

import java.awt.*;
import java.awt.geom.Path2D;
import javax.swing.*;

public class Test extends JPanel {
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        Path2D.Double path = new Path2D.Double();
        path.moveTo(100, 125);
        path.lineTo(300, 125);
        path.lineTo(300, 100);
        path.lineTo(350, 155);
        path.lineTo(300, 210);
        path.lineTo(300, 185);
        path.lineTo(100, 185);
        path.lineTo(100, 125);
        g2.setPaint(Color.blue);
        g2.fill(path);
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new Test());
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
}

[sunolinu]

very excellent thanks you hardwired
how i narrow it with like a line

[hardwired]

import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

public class TrigArrow extends JPanel {
    Point p1 = new Point(100,100);
    Point p2 = new Point(300,300);
    double dia = 25.0;
    double barb = 15.0;
    double phi = Math.toRadians(20);
    
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        g2.setPaint(Color.red);
        g2.fill(new Ellipse2D.Double(p1.x-1.5, p1.y-1.5, 4, 4));
        g2.fill(new Ellipse2D.Double(p2.x-1.5, p2.y-1.5, 4, 4));
        g2.setPaint(Color.blue);
        g2.draw(new Ellipse2D.Double(p1.x-dia/2, p1.y-dia/2, dia, dia));
        g2.draw(new Ellipse2D.Double(p2.x-dia/2, p2.y-dia/2, dia, dia));
        double dy = p2.y - p1.y;
        double dx = p2.x - p1.x;
        double theta = Math.atan2(dy, dx);
        double x1 = p1.x + (dia/2)*Math.cos(theta);
        double y1 = p1.y + (dia/2)*Math.sin(theta);
        theta += Math.PI;
        double x2 = p2.x + (dia/2)*Math.cos(theta);
        double y2 = p2.y + (dia/2)*Math.sin(theta);
        g2.setPaint(Color.green.darker());
        g2.draw(new Line2D.Double(x1, y1, x2, y2));
        double x = x2 + barb*Math.cos(theta+phi);
        double y = y2 + barb*Math.sin(theta+phi);
        g2.draw(new Line2D.Double(x2, y2, x, y));
        x = x2 + barb*Math.cos(theta-phi);
        y = y2 + barb*Math.sin(theta-phi);
        g2.draw(new Line2D.Double(x2, y2, x, y));
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new TrigArrow());
        f.setSize(400,400);
        f.setLocation(100,100);
        f.setVisible(true);
    }
}

[sunolinu]

very thank you , it is itself and excellent ------------> best thanks for all --------> i next add solved

i have another question i want to create tape of turing machine graphically i should use what ?

see here is question :
how i can to create tape of turing machine graphically